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곱셈: 2 x 21X0

1

		1	0
		2	1
		1	0
	2	0	0
	2	1	0

2

		2	5
		8	8
	2	0	0
2	0	0	0
2	2	0	0

3

		1	4
		7	4
		5	6
	9	8	0
1	0	3	6

4

		3	0
		9	8
	2	4	0
2	7	0	0
2	9	4	0

5

		4	1
		1	1
		4	1
	4	1	0
	4	5	1

6

		7	4
		4	8
	5	9	2
2	9	6	0
3	5	5	2

7

		1	4
		2	1
		1	4
	2	8	0
	2	9	4

8

		1	8
		6	1
		1	8
1	0	8	0
1	0	9	8

9

		3	4
		9	5
	1	7	0
3	0	6	0
3	2	3	0

10

		3	5
		9	6
	2	1	0
3	1	5	0
3	3	6	0

11

		2	3
		1	6
	1	3	8
	2	3	0
	3	6	8

12

		2	0
		1	2
		4	0
	2	0	0
	2	4	0

13

		5	3
		2	5
	2	6	5
1	0	6	0
1	3	2	5

14

		5	4
		4	5
	2	7	0
2	1	6	0
2	4	3	0

15

		4	5
		3	5
	2	2	5
1	3	5	0
1	5	7	5

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